I've had that same beige color in my Midi UDS.
I wire-brushed the top ring and then I said Phark it!
It was my first experience with liner,some tuPh sh!t!
Burned that drum out and it was quite easy to remove the liner.
Nice build...start the seasoning!
All fueled by Ecobrasa
Dutch BBQ Champion 2011 - 2012*
Dutch BBQ Champion 2013 Low 'n Slow